Stove construction



May 5, 1936; s, KLUTE 2,039,539

STOVE CONSTRUCTION Filed March 28, 1934 2 Sheets-Sheet 1 ATTORNEY.

May 5, 1936. 5, mm 2,039,539

STOVE CONSTRUCTION Filed March 28, 1954 2 Sheets-Sheet 2 INVENTOR 57 4 0M 57 a/m/e/ My ATTORNEY.

Patented May 's, 1936 UNITED STATES STOVE CONSTRUCTION Samuel Klute,South, Bend, Ind., asaignor to The Malleable Steel Range Manufacturing00.,

South Bend, Ind.

Application March 28, 1934, Serial No. 117,793 '2 Claims. ((21. iza-i)The invention relates to improvements in stove constructions, andparticularly to improvements in the construction of the cabinet of acoal or wood burning cook stove.

The primary object of the invention is to provide a construction of thischaracter which provides an air-tight stove cabinet.

A further object is to provide a stove cabinet construction wherein theside and back panels are formed of sheet metal and interconnected byinterlocking flanges.

A further object is to provide a stove cabinet construction comprisingpanels interconnected by interlocking flanges and provided with meansact ing upon said panels for tightening said flange joints toeffectively close or seal said joints throughout their length.

A further object is to provide a construction of this character whereinbulges and openings between the edges of interconnected panels areeliminated.

A further object is to provide a stove construction wherein the use ofrivets and like securing means is reduced to a minimum.

With the above and other-objects in view, the invention resides in thecombination and arrangement of parts as hereinafter set forth,

shown in the drawings, described and claimed, it'

being understood that changes in the precise embodiment of the inventionmay be made within the scope of what is claimed without departing fromthe spirit of the invention.

In the drawings: Figure 1 is a perspective view of the stove. Figure 2is a top plan view of the top frame of the stove.

Figure 3 is a fragmentary vertical sectional view of the stove taken online 3-2 of Figure 2. Figure 4 is a fragmentary perspective view of thestove cabinet.

Figure 5 is an enlarged fragmentary sectional view of thestove cabinettaken on line of Figure 4 and illustrating the interlocking flange paneljoint construction as first effected.

Figure 6 is an enlarged fragmentary sectional view of the stove cabinetsimilar to Figure 5- and on which the stove cabinet is supported. The.

stove cabinet comprises a front panel Ii, side panels l2, rear panel l3,and top frame ll. The front panel H carries a door It. opening to theflre chamber and ash compartment of the stove,

an oven door IO, and a door I'I opening to the reservoir compartment.The top frame it carries the usual reservoir lid l8, cooking plate is,and fire chamber lids 20.

The top frame It is preferably of integral cast or malleable metalconstruction having (one or more openings therein for the reception oflids II, I! and 2|, said lids being supported by downwardly off-setinwardly directed horizontal flanges 2i carried by vertical webs 22depending from said frame at the inner peripheries of the lid openings.Corner pieces 23 are carried by the frame ,said corner pieces beingpositioned at the bottom of saidframe with the outer sides thereofalignedwith the adjacent outer faces of the vertical webs 22. One ormore depending vertical ears 2! are carried by frame It with the outerfaces thereof substantially aligned with the outer face of the web 22 bywhich each is carried. The side panels l2 and rear panel ii are formedof sheet metal, and these panels are interconnected by a joint of theconstruction illustrated in Figure 5. Rear panel I! terminates at itsends in a rea'rwardly directed, spaced, return bent flange 2i; and theside panels l2 terminate at their rear ends in an angularlyinwardly bentportion 20, which carries a forwardly directed,

spaced, return bent flange 21.. The flanges of these panels are slid toplace, guided by the above described flanges, and these flanges serve toform an interlocking Joint. Suitable interlocking joint members alsoserve to connect the side panels l2 with front panel ll. At their lowerends, each of panels l2 and I3 is provided with an upwardly inwardlydirected, spaced, return bent flange 28. A sheet metal bottom plate 29is provided with marginal downwardly directed flanges l0, and theseflanges fit into the grooves or pockets formed by flanges 28, andsuitable rivets ill or like securing means extend through said flanges28 and 30 and through the lower ends of the side and rear panels tosecure said bottom plate 29 in operative relatiom In assembling thecabinet, the vertical panels l2 and I3 are first relatively shifted toassembled relation with the flanges thereof interlocking, then bottomplate 29 is positioned therein with its flange 30 supported by thereturn bent flanges 28 of the vertical panels, and top frame I is thenapplied to this assembly. The upper ends of the vertical panels of thestove cabinet bear against the outer faces of the webs 22 and aresecured to the ears 24 of frame II by bolts, rivets or other suitablesecuring means 32.

It will be seen that in this construction of the stove cabinet, aminimum of securing bolts or rivets are required, and that these arelocated only along the horizontal joints. The purpose of these securingmembers 3| and 32 is solely to secure together the parts of the cabinet,and particularly bottom plate 29 and top frame It to the vertical panelsor the cabinet, whereby only a small number of these securing means isrequired. The securing function of these securing means is thus clearlydifferent from the function of forming a seal or tight fit at thevarious cabinet joints, which is conventionally achieved in the art bythe use of a large number of securing means disposed at the joints. Inthis con-- .struction the function of sealing'the joints is achieved orcarried out solely and effectively by the interlocked flanged ends ofthe various parts, whereby openings formed by bulges resulting from theuse-of rivets and the like to form a joint are entirely eliminated, andwhereby, in

the use of enameled panels, the danger of chip-' by flanges 28 of thevertical panels holds said panels in operative relation to each other;which function is also served by the engagement of the vertical panelswith the top frame at their upper .edges.

The size of bottom plate 29 and flanges 22 of top frame I4 is such thatthe vertical panels are outwardly extended or forced to produce "a tightinterfltting relation between the interlocking flanges at the jointsthereof so that; al-

though said flanges originally flt together somewhat loosely, asillustrated in Figure 5, to permit relative sliding thereof in assembly,the outward -tension placed thereon by the top frame and bot- "tom platebrings said flanged interlock into frictional engagement whereby anair-tight seal or joint is obtained. In other words, the top frame andbottom plate serve to force the vertical members laterally outwardly andthereby take up the slack, play or looseness of the interfitting flangejoints throughout their full length, as illustrated -Q in Figure 6.

It will further be seen that this construction permits the stove cabinetper se to be built as a unit, and this unit may be suitably mounted onbase Ill constructed to receive and operatively position and supportthesame.

The construction of the oven of the stove utilizes the advantagesoutlined above. This oven construction is illustrated in Figure 7. Theoven 35 is formed of sheet metal and comprises two parts, one part 36thereof being of U-shape in cross section and carrying inwardly directedaligned portions 31 at its ends, which portions 31 carry outwardlydirected, spaced, return bent flanges 38. Plate 39 forms the other partof the oven, and extends between the open ends of said U-shaped member36. At its opposite sides,

39 and thus forms a tight joint between the interlocking flanges of thejoint to produce airtight sealed joints. At their opposite ends, themembers 36 and 39 01 the oven carry flanges 4| by means of which theoven may be operatively secured to the front and rear panels of thestove.

Thus, this construction permits unit assembly of the various parts ofthe stove, simplifies the handling and treatment of enameled members inthe assembly thereof to prevent loss due to chipping or breaking of theenamel, provides an airtight frictional joint for the stove parts, andutilizes bolts, rivets or like securing means only for securing partstogether at a few points whereby the use of such means is reduced to aminimum. The invention having been set forth, what is claimed as new anduseful is:

1. In a stove cabinet, enameled sheet metal side panels, a sheet 'metalback panel, said panels being provided with complementary return bentflanges at their vertical edges and with inwardly upwardly return bentflanges at their lower edges, said first named flanges being formed tonormally loosely interfit and provide interlocking joints between saidpanels, a sheet metal bottom plate having marginal downwardly directedflanges fitting into said last named flanges, and a rigid top framehaving rigid depending flanges engaging the upper inner faces of saidpanels. the flanges of said bottom plate and top frame being shaped andpositioned whereby they maintain said panels at the outermost limitdefined by said interlocking flanges to thereby tighten saidinterlocking joints without damaging the enamel on the panels byproviding positive double-face-contacting engagement between saidinterlocking flanges throughout their length and to provide positiveface-contacting engagement between said panels and the flanges of saidbottom plate and top frame throughout their length.

2. In a stove cabinet, the combination with enameled vertical sheetmetal panels provided with complementary return bent flan es at theirvertical edges and with inwardly upwardly return bent flanges at theirlower edges, said first named flanges normally loosely interfltting toform interlocking joints between said panels, of a bottom provided withdownwardly directed marginal flanges fitting into said last named panelflanges, and a top provided with flanges having face contactingengagement with the inner upper faces of said panels, the flanges ofsaid top and bottom being of a perimetral dimension whereby theymaintain said panels at the outermost lateral position permitted by saidinterlocking flanges to tighten said interlocking joints withoutdamaging the enamel on the panels and provide positive face contactingengagement between the complementary parts thereof.

SAMUEL KLUTE.

